在透析患者中,生物电阻相位角值和PR的延长和纠正的QT间隔
Masanori Shibata1,2, Kazuaki Asai1,2, Kojiro Nagai3
1Japan Association for Clinical Engineers, Tokyo, Japan.
Cardiorenal medicine
|March 20, 2024
概括
阶段角,体细胞质量的度量,与透析患者的心电图异常有关. 较低的相角值预测生存率更差,特别是在男性和非糖尿病患者中,这表明它可以用于评估心脏风险.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 心脏病学 心脏病学
- 生物阻抗分析分析
背景情况:
- 来自生物电阻分析 (BIA) 的相角 (PA) 反映了血液透析 (HD) 患者的体细胞质量和营养状况.
- 在HD患者中,PA和心电图 (ECG) 参数之间的关系尚不清楚.
研究的目的:
- 研究在接受血液透析的患者中相角值和心电图参数之间的关联.
- 探索相角对心脏并发症和所有原因死亡率的预测值.
主要方法:
- 对224名HD患者 (平均年龄72.2岁) 的回顾性研究.
- 多频BIA在透析后进行,以确定PA.
- 评估了心电图参数 (PR间隔,QRS宽度,QTc间隔) 和老年营养风险指数 (GNRI).
- 心脏事件和存活率数据是在五年内收集的.
主要成果:
- 在女性和糖尿病患者中,QTc延长是普遍存在的 (62.1%),并且更高.
- 在男性和非糖尿病患者中观察到PA和QTc之间的逆关系.
- 较低的PA值与明显较差的五年生存率相关.
- 在特定子组 (男性,非糖尿病患者) 中,QTc和PR延长与生存相关.
结论:
- 阶段角与心电图发现和HD患者的心脏并发症有关,特别是在男性和非糖尿病患者中.
- 除了其在营养评估中的作用之外,PA可以作为预测血液透析患者心脏风险和死亡率的宝贵工具.
相关概念视频
Dialysis
662
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
662
Electrocardiogram
2.3K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.3K
ECG Interpretation of Rhythms
843
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
843
Cardiac Action Potential
1.4K
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
1.4K


